Means for preventing banging off in looms.



No. 742,813. PATENTED 001'. 27, 1903.:

E. S. WOOD.

MEANS FOR PREVENTING BANGING-OFF IN LOOMS.

APPLICATION FILED AUG. 13, 1903. NO MODEL.

2 SHEETS-SHEET l.

PAZTENTED OCT. 27, 1903.

E. s. WOOD. MEANS FOR PREVENTING HANGING-OFF IN LOOMS.

APPLICATION FILED AUG. 13, 1903 H0 MODEL.

,Ziv Iverafl 26 0034 3y (4M the following description, in connection with Patented October 27, 1903.

STATES PATENT OFFICE.

UNITED WOOD, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

EVERETT S.

COMPANY,

MEANS FOR PREVENTING BANGING OFF lN LOOMS.

SPECIFICATION forming part of Letters Patent No. 742,813, dated October 27, 1903. Application filed August 13, 1903. Serial No. 169,328. No model.)

erator and loss of time. In the patent referred to the lay is permitted to come to rest gradually when the loom bangs off, and manifestly such a loom is apt to bang-off unnecessarily if the shipper is released for any reason other than improper boxing of the shuttle.

My present invention has for its object the production of means for preventing the loom from banging 01f unnecessarily when the shipper is released for other cause than improper boxing of the shuttle, and Ihave herein shown my invention embodied in a loom equipped as in said patent and provided also with means to release the shipper automatically upon the occurrence of a warp or filling fault.

To all whom it may concern:

Be it known that I, EVERETT S. Woon, a citizen of the United States, residing at Hope? dale, county of Worcester, State of Massachusetts,have invented an Improvement in Means for Preventing Banging Off in Looms,0f which the accompanying drawings,is a-specification, like characters on the drawings representing like parts.

Then a loom is running and the shuttle fails to properly box, the shipper is released by or through the frog, then engaged and moved by the dagger, and at such time the loom is said to bang-off.

In order to obviate warp breakage when the loom bangs off, means have been devised to positively and automatically slacken the warps to an abnormal extent, so that on the beat up if the shuttle is in the shed the warps will not be broken or strained. Such a device forms the subject-matter of United States Patent No. 731,622 and therein means are provided to restore automatically and positively the proper working tension of the warps when the loom is again started, such resetting of the warp-tension-controlling instrumentality being dependent upon the backward movement of the lay after banging off. Now in looms so equipped means are frequently provided to release the shipper upon the occurrence of a warp or afilling fault, and of course it is at times necessary to stop the loom by manual release of the shipper, and heretofore such a loom is apt to ban g-off when the shipper is released by any one of such means, automatic or manual. The bang-off is due to the fact that when the shipper is released the loom is apt to turn over v one ormore times, its speed diminishing as the momentum rapidly decreases, and owing to the diminished speed the shuttle may notboxproperly. Thereupon the dagger engages the frog and the warps are slackened unnecessarily, because the lay may not reach front center thereafter, or beat up so slowly as to prevent any warp damage even if the shuttle were in th sult of such a bang-ofi the warp be restored by manual resetting of the controlling instrumentality, requiring the ex ponditure of considerable strength by the opthe proper warp tension prior to starting up the loom, because by preventing bang-off the warps are not slackened.

The various novel features of my invention will be described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a left-hand side elevation of a loom embodying one form of my invention,the nearer end of the lay and the shuttle-box being shown in section, the warp-controlling means being shown in operative position. Fig. 2 is a similar view of a portion of the apparatus illustrated in Fig. 1, showing the means for preventing bang-off in operative position and the shipper as released and in stopping position. Fig. 8 is a front elevation of the parts shown in Fig. 2 in the position therein illustrated. Fig. at is a similar view, but with the parts in normal position, as in Fig. 1-, and Fig. 5 is a top or plan detail of a portion of the warp-tension-controlling instrumentality.

Referring to Fig. 1, the warp-beam B, actuating-ratchet B let-off pawl (1 pawl-carrier 0 (I, actuated through the link 61 from the lay-sword A the arm E, having a roll E to engage the periphery of the yarn mass on thebeam, the rockshaft m, having loosely fulcrumed upon its arms m for the whip-roll or bar W, the arms at, fast on rock-shaft m and supporting a controlling rock-shaft N, the cooperating locking arms or members m M, rigidly connected with said arms on and shaft N, respectively, the depending arm 7 obviate thenecessity for manually restoring moved into dotted-line position, Fig. 1, posisetting the warp-controlling instrumentality off lever c 0 actuated by the frog, are of ward movement of the filling-fork slide f the shipper may be released manually or vent banging off when the shipper has been side on a projecting stud 19 below the knockoff lever c c and having its rear end shouldered at 29, Figs. 1 and 2, to engage the offset 0 on the frog when said dog is in its opera tive position, Fig. 2. The length of the dog is such that when it does so cooperate with the frog the latter cannot, if engaged by the dagger, move forward far enough to effect rigidly connected with said shaft m and pivotally connected at its lower end with a rod a, having a collar 64 and passing loosely through the fixed ear I), said rod being pivotally con- 5 nected at a with the member o of the pawlcarrier, and the tension spring S, coiled IO said patent, I have herein shown an upturned arm n fast on rock-shaft N and pivotally connected at n with one end of a link 12 the other end of the latter being connected at n with the frog 0, forward movement of the I5 latter by engagement with the dagger d moving said link in the direction of arrow 75,

normal position the frog stop or dog rests upon a stop pin or lug 1 Figs. 1 and 4. An actuator for the dog is herein shown as a finger 19 secured to the shipper and extended inward therefrom beneath said dog and out of engagement therewith when the shipper is in running position, Figs. 1 and 4. 8

WVhen, however, the shipper is released independently of the action of the protector mechanism and warp-tension-controlling means,

as has been described, the outward movement of the shipper elevates the finger p and it go tive movement of the locking-arms m n and tively effecting slackening of the warps 10 25 warp tension comprises the upturned bunter The finger p is made yielding or elastic, so that it may give should the shipper be re- 5 leased by or through the frog, (for instance, when the loom properly bangs off,) for at such time the frog moves forward before the In addition the link 77, may be provided with an arm 12 (see dotted lines, Fig. 1) for reby hand. The lay A dagger (Z binder-finger cl, secured to the rock-shaft d and coopcrating with the binder CZX, the notched holdtion, and if some yield or give were not pro- :00

ing-plate N X for the shipper L, and the knockusual construction, as shown in Fig. 1.

' In Fig. 1 have shown a knock-off arm is for the shipper fulcrumed at 7c on the breastshipper is moved to start the loom the dog is IO 5 beam and adapted to be operated by outupon the occurrence of a filling fault, such as failure or breakage of the filling. The shipper may also be released by the operation of a warp stop-motion upon the occurrence of a 45 warp fault, a rock-shaft 9 mounted on the lower part of the loomframe, having a depending arm g and an upturned arm 9 Fig. l, bent over at its upper end and pro vided with a cam-slot 9 through which is 50 extended the lower end of the shipper below its fulcrum b The rock-shaft and its attached arms are controlled as t their movement by suitable warp-stop-motion mechanism, alink 9 form- 5 5 ing a part thereof, being connected with the arm 9 and serving to turn the rock-shaft 9 upon a warp failure and substantially as provided for in United States Patent N 0. 728,593. It will be manifest, therefore, that stopped, but without any undue shock, as by I 10 else construction and arrangement herein 11 Having described my invention, what I 12c claim as new, and desire to secure by Letters Patent, is

1. In aloom,ashipper, meansto slacken the warps upon improper boxing of the shuttle, and a device to prevent the operation of said :2 means when the shipper is released independently of the position of the shuttle.

2.. In a loom, protector mechanism, a shipanism, and a device rendered operative by release of the shipper independently of the action of said protector mechanism, to prevent he actuation of the warp-slackening means.

3. In a loom, ashipper, means, including a roll, means actuated by operative movement movable frog,to cause the positive slackening of the frog to move-the whip -roll positively of the warps upon improper boxing of the to slacken the warps, and adevice to prevent shuttle, and a normally inoperative frog-stop such operative movement of the frog when the rendered operative by or through release of shipper is released independently thereof. the shipper independently of said means, to 11. In a loom, a shipper adapted to be reprevent movement of the frog and thereby leased upon the occurrence of a warp or a prevent slackening of the warps.

l. In a loom, a member adapted to operate a stopping mechanism, a warp-tension-controlling instrumentality, positively acting means operated by or through improper boxg said instrumentality to slacken the warps, and adevice rendered operative to prevent slackening of the warps by said instrumentality when said member is actuated independently of the said positively-acting means. 7

5. Ina loom, ashipper, a movable whip-roll or bar on whichthewarpspass,means to operate upon improper boxing of the shuttle to m ove positively the whip-roll or bar to slacken the warps, and a device to prevent automatically the operation of said means when the shipper is released independently thereof.

6. In a loom, a shipper, a movable whip-roll or bar on which the warps pass, a lay, means adapted to be operated thereby on its forward beat, upon improper boxing of the shuttle, to move positively the whip-roll or bar to slacken the warps, and a device rendered operative by release of the shipper independently of said means to prevent movement of the whiproll or bar by said means.

7. In aloom,a shipper,a movable whip-roll, protector mechanism, including a movable frog, a connection between it and the whiproll to positively move the latter to slacken the warps, by the operation of the protector mechanism, and a frog-stop rendered operativeto prevent movement of the frogto slacken the warps when the shipper is released independently of the protector mechanism.

8. In a loom,a shipper,a movable whip-roll, rotector mechanism, means actuated by opimproper boxing of the shuttle, and a device to prevent the operation of said means when release of the shipper is due to a warp or a filling fault.

12. In a loom, a shipper adapted to be released upon the occurrence of awarp or afillingfault, means to slacken the warps upon improper boxing of the shuttle, and a movable device rendered operativeby the shipperwhen released upon the occurrence of a warp or a filling fault to prevent the operation of said warp-slackening means.

18. In a loom, a shipper, releasing instrumentalitiestherefor operative respectively by or through warp and filling faults, means to slacken the warps and normally to release the shipper upon improper boxing of the shuttle, and a device automatically operative to prevent the operation of said means upon prior release of the shipper by either of said releasing instrumentalities.

14:. In a loom, a shipper, releasing means therefor, operative upon filling failure, a second releasing means adapted to be operated by a warp stop motion, positively acting means to slacken the warps upon boxing of the shuttle, and a device rendered operative to prevent the operation of said positively-acting means when theshipper is released by either of said releasing means.

15. a loom provided with a shipper, releasing means therefor operative by or through filling-detecting and warp-stop-motion mechanisms respectively, a warp-tensioncontrolling means to positively slacken the warps upon improper boxing of the shuttle, a movable device to prevent the operation of said mean and an actuator to operatively position said device upon release of the shipper by either of the releasing means therefor. 16. In a loom,-a shipper, a yielding actuator thereon, a protector mechanism, including a movable frog, means actuated by operative movement of the frog through said protector mechanism to positively slacken the warps, and a pivotally-mounted, normally inoperative frog-stop, release of the shipper independently of the protector mechanism causing said actuator to engage and lift the frog-stop into position to engage and prevent operative movement of the frog by the protector mechanism.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EVERETT S. WOOD.

eration of the latter to move the whip-roll positively to slaclcen the warps, and a device to automatically prevent the operation of said means by the protector mechanism when the shipper is released independently thereof.

9. In a loom, a shipper having an attached finger, a movable whip-roll, protector mechanism, including a movable frog,a connection between it and the whip -roll to positively move the latter to slacken the warps upon movement of the frog by the protector mechanism, and a normally inoperative frog-stop, release of the shipper independently of the protector mechanism causing the finger to move the frog-stop into position to prevent movement of the frog by the operation of the rotector mechanism.

10. In a loom, a shipper, a lay, protector mechanism, including a, dagger, and a frog to be engaged and moved thereby on the forward beat of the lay to release the shipper W'itnesses:

FRANK J. Duronnn, O. H. DRAPER.

upon improper boxing of the shuttle, a whipfilling fault, means to slacken the warps upon improper 

